[PATCH v2] mmc: mmci.c: Defer probe() in case of yet uninitialized GPIOs

[Roland Stigge]

On 16/06/12 19:23, Arnd Bergmann wrote:
> On Saturday 16 June 2012, Roland Stigge wrote:
>> +       if (of_get_property(np, "wp-gpios", NULL)) {
>> +               pdata->gpio_wp = of_get_named_gpio(np, "wp-gpios", 0);
>> +               if (pdata->gpio_wp == -ENODEV)
>> +                       pdata->gpio_wp = -EPROBE_DEFER;
>> +       } else {
>> +               pdata->gpio_wp = -ENODEV;
>> +       }
> 
> This is still very ugly and there is a certain danfer that we might
> have to duplicate this across more drivers. Can't we make
> of_get_named_gpio_flags return -EPROBE_DEFER in cases where we can't
> find the GPIO number yet but still have a chance of returning it at
> a later point?

OK, will post a new patch.

Roland